7s-2=-18s^2+40-33s

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Solution for 7s-2=-18s^2+40-33s equation:


Simplifying
7s + -2 = -18s2 + 40 + -33s

Reorder the terms:
-2 + 7s = -18s2 + 40 + -33s

Reorder the terms:
-2 + 7s = 40 + -33s + -18s2

Solving
-2 + 7s = 40 + -33s + -18s2

Solving for variable 's'.

Reorder the terms:
-2 + -40 + 7s + 33s + 18s2 = 40 + -33s + -18s2 + -40 + 33s + 18s2

Combine like terms: -2 + -40 = -42
-42 + 7s + 33s + 18s2 = 40 + -33s + -18s2 + -40 + 33s + 18s2

Combine like terms: 7s + 33s = 40s
-42 + 40s + 18s2 = 40 + -33s + -18s2 + -40 + 33s + 18s2

Reorder the terms:
-42 + 40s + 18s2 = 40 + -40 + -33s + 33s + -18s2 + 18s2

Combine like terms: 40 + -40 = 0
-42 + 40s + 18s2 = 0 + -33s + 33s + -18s2 + 18s2
-42 + 40s + 18s2 = -33s + 33s + -18s2 + 18s2

Combine like terms: -33s + 33s = 0
-42 + 40s + 18s2 = 0 + -18s2 + 18s2
-42 + 40s + 18s2 = -18s2 + 18s2

Combine like terms: -18s2 + 18s2 = 0
-42 + 40s + 18s2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-21 + 20s + 9s2) = 0

Factor a trinomial.
2((-3 + -1s)(7 + -9s)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + -1s)' equal to zero and attempt to solve: Simplifying -3 + -1s = 0 Solving -3 + -1s = 0 Move all terms containing s to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1s = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1s = 0 + 3 -1s = 0 + 3 Combine like terms: 0 + 3 = 3 -1s = 3 Divide each side by '-1'. s = -3 Simplifying s = -3

Subproblem 2

Set the factor '(7 + -9s)' equal to zero and attempt to solve: Simplifying 7 + -9s = 0 Solving 7 + -9s = 0 Move all terms containing s to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -9s = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -9s = 0 + -7 -9s = 0 + -7 Combine like terms: 0 + -7 = -7 -9s = -7 Divide each side by '-9'. s = 0.7777777778 Simplifying s = 0.7777777778

Solution

s = {-3, 0.7777777778}

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